import { resolve } from 'path'
import { loadEnv } from 'vite'
import type { UserConfig, ConfigEnv } from 'vite'
import { createVitePlugins } from './build/vite'
import { include, exclude } from "./build/vite/optimize"
// 当前执行node命令时文件夹的地址(工作目录)
const root = process.cwd()
const url = 'http://121.41.110.91:48080/admin-api'

// 路径查找
function pathResolve(dir: string) {
  return resolve(root, '.', dir)
}

// https://vitejs.dev/config/
export default ({ command, mode }: ConfigEnv): UserConfig => {
  let env = {} as any
  const isBuild = command === 'build'
  if (!isBuild) {
    env = loadEnv((process.argv[3] === '--mode' ? process.argv[4] : process.argv[3]), root)
  } else {
    env = loadEnv(mode, root)
  }
  return {
    base:  env.VITE_BASE_PATH,
    root: root,
    server: {
      port: 8080,
      proxy: {
        '/admin-api': {
          target: url,
          changeOrigin: true,
          rewrite: (path) => path.replace(/^\/admin-api/, ''),
        },
      },
      hmr: true,
      // watch: {
      //   usePolling: true, // 轮询监听文件变化
      //   interval: 1000, // 监听的间隔时间（ms）
      // },
    },
    // 项目使用的vite插件。 单独提取到build/vite/plugin中管理
    plugins: createVitePlugins(),
    css: {
      preprocessorOptions: {
        scss: {
          additionalData: '@import "./src/styles/variables.scss";',
          javascriptEnabled: true
        }
      }
    },
    resolve: {
      extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.scss', '.css'],
      alias: [
        {
          find: 'vue-i18n',
          replacement: 'vue-i18n/dist/vue-i18n.cjs.js'
        },
        {
          find: /\@\//,
          replacement: `${pathResolve('src')}/`
        }
      ]
    },
    build: {
      minify: 'terser',
      outDir: env.VITE_OUT_DIR || 'dist',
      sourcemap: env.VITE_SOURCEMAP === 'true' ? 'inline' : false,
      // brotliSize: false,
      terserOptions: {
        compress: {
          drop_debugger: env.VITE_DROP_DEBUGGER === 'true',
          drop_console: env.VITE_DROP_CONSOLE === 'true'
        }
      },
      rollupOptions:{
        output:{
          chunkFileNames: 'js/[name]-[hash].js', // 引入文件名的名称
            entryFileNames: 'js/[name]-[hash].js', // 包的入口文件名称
            assetFileNames: '[ext]/[name]-[hash].[ext]', // 资源文件像 字体，图片等
            manualChunks(id){
              if (id.includes('node_modules')) {
                return id.toString().split('node_modules/')[1].split('/')[0].toString();
              }
            }
          }

      }
    },
    optimizeDeps: { include, exclude }
  }
}
